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import java.util.Arrays;
import java.util.Scanner;

public class OrdenacaoDePlacas {

    public static void radix(int exp,String[] numerosSplit) {

        int[] count = new int[10];

        for (int i = 0; i < numerosSplit.length; i++) {
            count[(Integer.parseInt(numerosSplit[i].substring(4, 8))/exp)%10]++;
        }

        for (int i = 1; i < count.length; i++) {
            count[i] += count[i- 1];
        }

        String[] resp = new String[numerosSplit.length];

        for (int i = numerosSplit.length - 1; i >= 0; i--) {
            resp[count[ (Integer.parseInt(numerosSplit[i].substring(4, 8))/exp)%10 ] - 1] = numerosSplit[i];
            count[ (Integer.parseInt(numerosSplit[i].substring(4, 8))/exp)%10 ]--;
        }

        for (int i = 0; i < resp.length; i++) {
            numerosSplit[i] = resp[i];
        }
    }

    private static int achaMaior(int[] v) {
        int maior = v[0];
        for (int i = 0; i < v.length; i++) {
            if(v[i] > maior) {
                maior = v[i];
            }
        }
        return maior;
    }

    public static void main(String[] args) {
        Scanner entrada = new Scanner(System.in);

        String numeros = entrada.nextLine();
        String[] numerosSplit = numeros.split(",");

        if(numerosSplit.length > 0) {

        int[] nums = new int[numerosSplit.length];

        for (int i = 0; i < nums.length; i++) {
            nums[i] = Integer.parseInt(numerosSplit[i].substring(4,8));
        }

        int maior = achaMaior(nums);

        for (int exp = 100; maior/exp > 0; exp *= 10) {
            radix(exp,numerosSplit);
        }

        String pprint = "";

        for (int i = 0; i < numerosSplit.length; i++) {
            pprint += numerosSplit[i] + ", ";
        }
        String ppprint = pprint.substring(0, pprint.length() - 2);

        System.out.println(ppprint);
    }}
}